Flinderspark apc pisa brochure

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PISA

Retaining Wall Systems The choice of professional contractors


PRODUCT

DESCRIPTION & DIMENSIONS (H x W x D)

~ WEIGHT PER UNIT

5501

Light Vertical Straight Unit 150 x 200 x 220

9.5

5502

Light Vertical Tapered Unit 150 x 200 x 220

5131

No./ Lin M²

UNITS PER PALLET

33

5

132

9.0

33

5

132

Left Hand Corner 150 x 300 x 200

18.0

-

-

48 L/H & 48 R/H

5132

Right Hand Corner 150 x 300 x 200

18.0

-

-

48 L/H & 48 R/H

5440

440 Capping Unit 65 x 440 x 320

16.0

-

2.3

84

5103

200 Capping Unit (Check Availability) 65 x 200 x 230

5.3

-

5

270

CODE

No./M²

Advantages • Won’t rot like a wooden sleeper wall

• Virtually maintenance free

• No mortar required

• Ability to construct the wall yourself with no previous experience

• No pins needed • Self aligning • No concrete footing required • Ability to easily make steps. Internal and external to wall

• Flexible system won’t crack like a brick wall • Range of capping units to suit your job


Colour range

Autumn Gold

Ivory

Bluestone

Charlestone

Desert Sand

NOTE: These colours are an indication only, please contact your nearest distributor to view sample colours.


Corners External

Left

Curves

Steps

Concave Curve

Right

Convex Curve

• Use left and right cornerstones alternately Internal

1st Course

2nd Course

(and 3rd, 5th & 7th…) (and 4th, 6th & 8th…)

• Using straight PISA units you can create internal corners with the method detailed above.

• To create a convex curve use tapered units. Use Left tapered units on one course, right tapered units on the next, alternating up the wall. • To create a concave wall use straight units. • Minimum radius: 2400mm (Add 20mm to this for each course in the wall)

• Steps are easily created with Pisa by simply using standard units for risers and split face capping units for step treads. • You can create internal or external stairs to your wall. • Ask your Pisa salesperson for a Pisa Stair construction help sheet.


PISA Height Tables ÂŽ

Walls up to 600mm in height

Unreinforced retaining wall MAXIMUM HEIGHT ACHIEVABLE (mm)

Hollow Block

Footing Thickness (mm)

Footing Width (mm)

Footing Toe (mm)

200

600

250

600

The wall height shown above applies for average soil conditions (Friction Angle>20° and cohesion factor > 5kPa). There must be no surcharge (ie no applied load or backfill slope > 1:4)

Top Soil Undisturbed Soil Geo-textile Cloth

Distance to Footing Toe

Drainage layer of 12 mm angular clear stone

Compacted sand or mortar bed layer

Drain >90mm Footing Thickness

Compacted crushed Rock levelling footing Footing Width

Walls over one metre in height

(Engineer design required)

*Note: These tables are indicative only. All walls over 1000mm in height must be designed and certified by an engineer.

Geo-grid reinforced wall

No-fines concrete constructed wall No-fines concrete. Depth determined by table.

Top Soil

Top Soil

Distance to Footing Toe

Undisturbed Soil

Undisturbed Soil

Geo-textile Cloth

Geo-textile Cloth

Compacted select in fill area

Compacted sand or mortar bed layer

Perforated Drain >90mm

Compacted crushed Rock levelling footing

Footing Thickness Footing Width

Distance to Footing Toe

Geo-grid Compacted sand or mortar bed layer

No-fines Concrete

Drain >90mm

Compacted crushed Rock levelling footing

Footing Thickness

Footing Width

General Notes applicable to all above design tables: All retaining walls are designed to AS 4678 (Including Amendment 1), for Structure Classification 3. All designs are based on the method published by the Concrete Masonry Association of Australia. All retaining walls over 1500 are designed for a live load of 5 kPa. All retaining walls up to 1500 are designed for a live load of 2.5 kPa. If live loads above these values are expected, these designs will not be appropriate. All walls are designed using Coulumb formula, except 900mm and 700mm high gravity walls which are also designed using Rankine-Bell formula. Cohesion is difficult to predict, is variable, may change over time, and is dependant on the effectiveness of surface sealing, surface drainage and subsurface drainage. Consideration must also be given for shrink\swell action of clay soils.



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